TW202034989A - Water flow detection device including a hollow body, a valve, a rod, an opening, a cover and a switch - Google Patents

Water flow detection device including a hollow body, a valve, a rod, an opening, a cover and a switch Download PDF

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TW202034989A
TW202034989A TW108141930A TW108141930A TW202034989A TW 202034989 A TW202034989 A TW 202034989A TW 108141930 A TW108141930 A TW 108141930A TW 108141930 A TW108141930 A TW 108141930A TW 202034989 A TW202034989 A TW 202034989A
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valve
rod
opening
cover
water flow
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TW108141930A
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TWI813811B (en
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金幸宏
千葉晶
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日商千住撒水股份有限公司
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  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

The present invention provides a water flow detection device which is small and light weighted. The water flow detection device V1 includes a hollow body 1 connected to pipes of a fire extinguishing equipment; a valve 7 which adopts a swing check valve structure inside the hollow body 1; and a rod 11 having one end 11A engaged with the valve 7 and the other end 11B protruded to the outside of the hollow body 1. The rod 11 is displaced by the opening and closing actions of the valve 7. The water flow detection device V1 further includes an opening 1a which allows the valve 7 to enter and exit from the hollow body 1; a cover 1b configured to block the opening 1a; and a switch 17 arranged at the cover 1b. A signal is output by a displacement of the other end 11B of the rod 11. In addition, there is a space for disposing the rod 11 between the opening 1a and the valve 7. The hollow body 1 includes a cylindrical receiving portion 1d for receiving the valve 7 in its fully opened state.

Description

水流偵測裝置Water flow detection device

本發明係關於一種設置於滅火設備配管之水流偵測裝置。The present invention relates to a water flow detection device installed in a pipe of a fire extinguishing equipment.

灑水設備或泡沫滅火設備等滅火設備自水源起於連接於灑水頭（或泡沫頭）之配管上設置有水流偵測裝置。水流偵測裝置採用止回閥構造，僅容許水源向灑水頭之單一方向之通水。Sprinkler equipment or foam fire extinguishing equipment and other fire extinguishing equipment are equipped with water flow detection devices from the water source on the piping connected to the sprinkler head (or foam head). The water flow detection device adopts a check valve structure, which only allows the water source to flow in a single direction from the sprinkler head.

作為習知之水流偵測裝置，例如有專利文獻1所記載者。該水流偵測裝置如圖9所示，將閥體51之開放動作轉換為桿52與搖桿53之位移，而使開關54成為作動狀態。桿52於中間由軸支承，其一端側與設置於閥體51之邊緣之突出部51a卡合，錘W作用於桿52之另一端側。藉由錘W對閥體51朝向開閥方向施加荷重，藉由該荷重，桿52於開閥時追隨閥體51之動作而位移。於專利文獻1之水流偵測裝置中，將上文所述之桿52或搖桿53、開關54等設置於堵塞本體51之開口之蓋55上而構成。As a conventional water flow detection device, for example, there is one described in Patent Document 1. As shown in FIG. 9, the water flow detection device converts the opening action of the valve body 51 into the displacement of the rod 52 and the rocker 53, so that the switch 54 is activated. The rod 52 is supported by a shaft in the middle, and one end of the rod 52 is engaged with a protrusion 51a provided on the edge of the valve body 51, and the hammer W acts on the other end of the rod 52. A load is applied to the valve body 51 in the valve opening direction by the hammer W, and by this load, the rod 52 is displaced following the movement of the valve body 51 when the valve is opened. In the water flow detection device of Patent Document 1, the above-mentioned lever 52 or rocker 53, switch 54, etc. are arranged on the cover 55 which blocks the opening of the main body 51.

於上述水流偵測裝置中，進行如下復原作業：打開蓋55進行保養作業後，關閉蓋55，使桿52之前端與閥體51之突出部51a卡合而恢復為初始位置。此時，如上文所述，藉由作用於桿52之錘W使得桿52之一端側位於較初始位置更上方之位置，於此狀態下，桿52之一端側與閥體51之突出部51a產生干擾。因此，操作設置於閥體51之下方之重設部56而於使閥體51稍許開放之狀態下關閉蓋55，其後使重設部56恢復原位後，閥體51被設於關停位置，成為突出部51與桿52之一端側卡合之初始位置之狀態。 [先前技術文獻] [專利文獻]In the above-mentioned water flow detection device, the following restoration operation is performed: after opening the cover 55 for maintenance, the cover 55 is closed, and the front end of the rod 52 is engaged with the protrusion 51a of the valve body 51 to return to the initial position. At this time, as described above, the one end side of the rod 52 is positioned above the initial position by the hammer W acting on the rod 52. In this state, the one end side of the rod 52 and the protrusion 51a of the valve body 51 Produce interference. Therefore, the reset part 56 provided under the valve body 51 is operated to close the cover 55 while the valve body 51 is slightly opened, and then the reset part 56 is restored to its original position, and the valve body 51 is set to shut down The position becomes the initial position where the protrusion 51 engages with one end side of the rod 52. [Prior Technical Literature] [Patent Literature]

[專利文獻1]日本特開2012-217777號公報[Patent Document 1] JP 2012-217777 A

[發明所欲解決之課題][The problem to be solved by the invention]

於上述水流偵測裝置中，由於將重設部設置於一次側室，故而難以將本體小型化。又，重設部之操作手柄位於蓋之下方，存在關閉蓋後忘記重設部之解除操作之可能性。因此，於復原作業中在作業結束後必須充分地注意、確認閥體與桿是否正確地卡合。In the above-mentioned water flow detection device, since the reset part is provided in the primary side chamber, it is difficult to miniaturize the main body. In addition, the operating handle of the reset part is located under the cover, and there is a possibility that the reset part is forgotten after the cover is closed. Therefore, it is necessary to pay sufficient attention to confirm whether the valve body and the rod are properly engaged in the restoration operation after the operation is completed.

又，近年來由於勞動者不足，建設現場亦正推進作業之效率化，水流偵測裝置等之閥裝置雖然為尺寸相對較小者，但重量亦有數十kg左右，為了提高作業效率，業界對輕量化之期望正在增加。In addition, in recent years, due to the shortage of labor, the construction site is also promoting the efficiency of the work. Although the valve device such as the water flow detection device is relatively small in size, the weight is about tens of kg. In order to improve the work efficiency, the industry Expectations for lightweighting are increasing.

因此，本發明鑒於上述問題，目的在於提供一種可實現小型輕量化之水流偵測裝置。 [解決課題之手段]Therefore, in view of the above-mentioned problems, the present invention aims to provide a water flow detection device that can be small and lightweight. [Means to solve the problem]

為了達成上述目的，本發明提供以下之水流偵測裝置。 本發明之水流偵測裝置，具備：中空狀之本體，其連接於滅火設備配管；閥，其於本體之內部採用擺動止回閥構造；桿，其一端與上述閥卡合，另一端向上述本體之外部突出，且藉由上述閥之開閉動作而位移；開口，其可供上述閥自上述本體出入；蓋，其堵塞該開口；及開關，其設置於蓋，藉由桿之另一端側之位移而輸出訊號，並且於上述開口與上述閥體之間具有配置上述桿之空間而構成。In order to achieve the above objective, the present invention provides the following water flow detection device. The water flow detection device of the present invention is provided with: a hollow body connected to the piping of a fire extinguishing device; a valve, which adopts a swing check valve structure inside the body; a rod, one end of which is engaged with the valve and the other end faces The outside of the body protrudes and is displaced by the opening and closing actions of the valve; an opening, which allows the valve to enter and exit from the body; a cover, which blocks the opening; and a switch, which is arranged on the cover by the other end side of the rod A signal is output by the displacement, and a space for the rod is arranged between the opening and the valve body.

藉此，可抑制水流偵測裝置之高度尺寸而實現小型輕量化。若進行具體說明，則例如於向外側擴張地設置於本體之上下端之凸緣穿設有多個螺栓孔，藉由安裝於該螺栓孔之螺栓，以不阻礙封閉開口之蓋之拆裝之方式，蓋或開口配置於較螺栓孔更外側之凸緣之邊緣附近。藉此於開口與閥體之間設置空間。Thereby, the height size of the water flow detection device can be suppressed, and the size and weight can be realized. For specific descriptions, for example, a plurality of bolt holes are pierced through the flanges that are expanded outwardly on the upper and lower ends of the main body. The bolts installed in the bolt holes do not hinder the disassembly and assembly of the cover closing the opening. In this way, the cover or opening is arranged near the edge of the flange outside the bolt hole. Thereby, a space is provided between the opening and the valve body.

又，為了精度良好地偵測閥體之開放引起之位移，桿必須確保既定之長度，藉由上文所說明之空間可確保桿之長度。進而，於閥體之開口側之邊緣設置有與桿卡合之突出部，突出部配置於上文所述之空間。於關閥時，桿之一端被卡止於突出部之閥座側之面。In addition, in order to accurately detect the displacement caused by the opening of the valve body, the rod must ensure a predetermined length, and the length of the rod can be ensured by the space described above. Furthermore, a protrusion engaging with the rod is provided on the edge of the opening side of the valve body, and the protrusion is arranged in the aforementioned space. When closing the valve, one end of the rod is locked on the side of the valve seat of the protrusion.

又，若將於閥之軸承之上方收容全開狀態之上述閥之收容部設置於本體，則藉由收容部，例如於泵啟動將大量之水送向水流偵測裝置而閥成為全開狀態時可減少壓力損失。突出部係以自本體之二次側向外部伸出之狀態設置，藉由突出部使本體之內容積僅擴張一部分，而就本體之整體而言謀求內容積之減小。In addition, if the accommodating part of the valve in the fully opened state is placed on the main body above the bearing of the valve, the accommodating part can be used, for example, when the pump is activated to send a large amount of water to the water flow detection device and the valve becomes fully opened. Reduce pressure loss. The protruding part is arranged in a state of protruding from the secondary side of the main body to the outside, and the inner volume of the main body is only partially expanded by the protruding part, and the inner volume of the main body is reduced as a whole.

進而，若將閥之軸承與突出部、本體之開口配置於與平行於本體之中心軸之虛擬平面交叉之直線上，則可抑制使閥自開口出入時之開口面積。於上文所說明之引用文獻1之水流偵測裝置中，閥之軸承與開口之位置關係係將閥之軸承設置於相對於以本體之中心軸為中心之開口之位置而旋轉90度之位置。由此，必須確保開口之寬度為將圓盤狀之閥之直徑與圓筒狀之軸承之外徑相加而得之尺寸以上之寬度，方可實現閥之出入。與此相對，本申請案之開口只要設為圓盤狀之閥之直徑尺寸以上之寬度，則可實現閥之出入，從而可較小地構成開口。Furthermore, if the bearing and the protrusion of the valve and the opening of the main body are arranged on a straight line that intersects a virtual plane parallel to the central axis of the main body, the opening area when the valve enters and exits from the opening can be suppressed. In the water flow detection device of Reference 1 described above, the positional relationship between the valve bearing and the opening is that the valve bearing is set at a position rotated by 90 degrees relative to the position of the opening centered on the central axis of the body . Therefore, it is necessary to ensure that the width of the opening is greater than the size obtained by adding the diameter of the disc-shaped valve and the outer diameter of the cylindrical bearing in order to realize the valve access. In contrast, the opening of the present application only needs to be set to a width greater than the diameter of the disc-shaped valve, so that the valve can enter and exit, and the opening can be made smaller.

於閥具有自閥座載置面向一次側延伸之裙部，藉由裙部縮小流過圓筒狀之閥座之內部的水之通過面積，而可放大閥之轉動角度，藉此增加桿之轉動量。The valve has a skirt extending from the valve seat placement surface to the primary side. By reducing the passage area of the water flowing through the cylindrical valve seat, the skirt can enlarge the rotation angle of the valve, thereby increasing the rod The amount of rotation.

桿之一端由另行設置之推壓構件推向開閥方向，若打開閥，則桿之一端亦因推壓構件之作用而追隨開閥方向進行轉動動作。桿之轉動範圍受到限制，若閥開放既定程度以上，則成為突出部與桿之一端分開而桿被卡留於既定之位置之狀態。於開放之閥恢復為關停狀態時，桿之一端再度被突出部卡止而恢復至原來之初始位置。One end of the rod is pushed toward the valve opening direction by a separate push member. If the valve is opened, one end of the rod will also follow the valve opening direction to rotate due to the action of the push member. The rotation range of the rod is limited. If the valve is opened more than a predetermined degree, the protrusion will be separated from one end of the rod and the rod will be stuck in a predetermined position. When the opened valve returns to the closed state, one end of the rod is again locked by the protrusion and returns to the original initial position.

又，突出部於自開口取出閥時可用作把持部。突出部係設置於上文所說明之設置有開口與軸承之直線上。由此，開口之寬度可以較處於閥之突出部與軸承之間之圓盤部之尺寸更大之方式構成。又，開口之寬度可以較閥之突出部之前端至軸承為止之尺寸更小之方式構成。In addition, the protruding part can be used as a holding part when the valve is taken out from the opening. The protruding part is arranged on the straight line where the opening and the bearing are arranged as described above. As a result, the width of the opening can be constructed in a way that is larger than the size of the disc part between the protrusion of the valve and the bearing. In addition, the width of the opening can be made smaller than the size from the front end of the valve protrusion to the bearing.

本發明之水流偵測裝置，於桿之另一端側之附近具有可將桿保持於初始位置/解除該保持之鎖定裝置。若使用鎖定裝置，則於進行蓋之安裝作業時，可使桿之一端確實地卡合於突出部。又，鎖定裝置之手柄成為於保持桿之狀態下自蓋之邊緣伸出之狀態，而可容易地判斷鎖定裝置之保持/保持解除狀態。 [發明之效果]The water flow detection device of the present invention has a locking device that can hold the rod in the initial position/release the holding near the other end of the rod. If a locking device is used, one end of the rod can be securely engaged with the protrusion when the cover is installed. In addition, the handle of the locking device is in a state of protruding from the edge of the cover in the state of holding the rod, and the holding/holding release state of the locking device can be easily judged. [Effects of Invention]

根據本發明，可於本體設置於開口與閥體之間配置桿之空間，或設置收容全開狀態之閥之收容部而抑制本體之高度尺寸，謀求本體之小型輕量化。除此以外，藉由鎖定裝置，於蓋之安裝作業時可將桿之一端確實地卡合於突出部。進而，可容易地判斷鎖定裝置之保持/保持解除狀態，而可於保養作業等中確實地進行復原作業。According to the present invention, the main body can be installed in the space between the opening and the valve body to arrange the rod, or the receiving part for accommodating the valve in the fully opened state can be provided to suppress the height dimension of the main body, and achieve the compact and light weight of the main body. In addition, with the locking device, one end of the rod can be securely engaged with the protruding part during the installation operation of the cover. Furthermore, it is possible to easily determine the hold/hold release state of the lock device, and it is possible to reliably perform restoration work during maintenance work or the like.

以下，參照圖1至圖7對本發明之第1實施形態進行說明。第1實施形態之水流偵測裝置V1係由本體1、殼體2、排水閥3所構成。Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 7. The water flow detecting device V1 of the first embodiment is composed of a main body 1, a housing 2, and a drain valve 3.

本體1為中空形狀，內部由分隔壁4分為一次側室I與二次側室II。於分隔壁4穿設有連通孔5，於該連通孔5之二次側室II側設置有環狀之閥座6。The main body 1 has a hollow shape, and the interior is divided into a primary chamber I and a secondary chamber II by a partition wall 4. A communication hole 5 is penetrated through the partition wall 4, and an annular valve seat 6 is provided on the secondary side chamber II side of the communication hole 5.

於閥座6上載有閥體7，於閥體7之周緣之一部分形成圓筒狀之軸承8，2根閥桿9貫穿本體1之側面並插通於軸承8之孔。閥桿9以短於軸承8之方式構成，即使於本體1之周圍幾乎無作業空間之狀態下亦可容易地拆裝。又，插通於軸承8之孔之閥桿9之前端部係端部較細之錐形，即使軸承8之孔處於無法目視到之位置亦可容易地插通。A valve body 7 is mounted on the valve seat 6. A cylindrical bearing 8 is formed on a part of the periphery of the valve body 7. Two valve rods 9 penetrate the side surface of the body 1 and are inserted into the holes of the bearing 8. The valve stem 9 is configured to be shorter than the bearing 8, and it can be easily detached and assembled even when there is almost no working space around the main body 1. In addition, the front end of the valve stem 9 inserted into the hole of the bearing 8 is tapered with a thinner end, and it can be easily inserted even if the hole of the bearing 8 is in a position that is not visible.

閥體7係採用以閥桿9為軸而向二次側室II方向自由轉動之構成，若閥體7轉動，則閥體7離開閥座6，一次側室I之流體可通過環狀之閥座6內而通過二次側室II。閥體7具有於關閥狀態時配置於閥座6之內部之裙部7a。裙部7a於關閥狀態時，自閥體7之閥座載置面向一次側室I延伸，於閥體7自關閥狀態進行開放動作時，由裙部7a縮小流過閥座6內之水之通過面積，從而放大閥體7之轉動角度。The valve body 7 adopts a structure that uses the valve stem 9 as the axis to freely rotate in the direction of the secondary side chamber II. If the valve body 7 rotates, the valve body 7 leaves the valve seat 6, and the fluid in the primary side chamber I can pass through the ring-shaped valve seat 6 through the secondary side chamber II. The valve body 7 has a skirt portion 7a disposed inside the valve seat 6 when the valve is closed. When the skirt 7a is in the closed state, it extends from the valve seat placement surface of the valve body 7 to the primary side chamber I. When the valve body 7 opens in the self-closing state, the skirt 7a reduces the water flowing through the valve seat 6 The passing area can enlarge the rotation angle of the valve body 7.

於閥體7設置有自邊緣突出而形成之突出部10。如圖1所示，於本體1之正面設置有以虛線圖示之開口1a，具有堵塞開口1a之蓋1b。閥體7之突出部10係配置於開口1a附近之正面側，軸承8係配置於背面側。由此將突出部10設置於最遠離軸承8之位置。突出部10之寬度與軸承8之寬度大致相同。又，閥體7如圖4所示，形成有上部彎曲為凸形狀之凸部7b，藉此可確保閥體7之重量，並且於自圓形之開口1a取出閥體7時可避免開口1a與閥體7之干擾。The valve body 7 is provided with a protrusion 10 formed by protruding from the edge. As shown in Fig. 1, an opening 1a shown in dotted lines is provided on the front of the main body 1, and a cover 1b is provided to block the opening 1a. The protruding portion 10 of the valve body 7 is arranged on the front side near the opening 1a, and the bearing 8 is arranged on the back side. As a result, the protrusion 10 is arranged at the position farthest from the bearing 8. The width of the protrusion 10 is approximately the same as the width of the bearing 8. In addition, as shown in FIG. 4, the valve body 7 is formed with a convex portion 7b whose upper part is bent into a convex shape, thereby ensuring the weight of the valve body 7 and avoiding the opening 1a when the valve body 7 is taken out from the circular opening 1a. Interference with valve body 7.

如圖4所示，閥體7於軸承8與突出部10之間成為圓盤部7c，於圓盤部7c之下方設置有裙部7a，於上方設置有凸部7b。開口1a與軸承8、突出部10係配置於與平行於本體之中心線（圖1中之A-A線）之虛擬平面（例如，蓋1b之平面）交叉之直線上。藉由設為此種構成，可將開口1a之寬度抑制為圓盤部7c可通過之最小尺寸。As shown in FIG. 4, the valve body 7 becomes a disc part 7c between the bearing 8 and the protrusion part 10, the skirt part 7a is provided below the disc part 7c, and the convex part 7b is provided above. The opening 1a, the bearing 8 and the protrusion 10 are arranged on a straight line that crosses a virtual plane (for example, the plane of the cover 1b) parallel to the center line of the main body (line A-A in Fig. 1). With this structure, the width of the opening 1a can be suppressed to the smallest size through which the disk portion 7c can pass.

如上所述，於閥體7設置有裙部7a及凸部7b、突出部10。藉由該等構成，可確保閥體7之重量而獲得穩定之止水性。若進行具體說明，則藉由自連接於二次側室II之配管之接縫的微小之洩漏，二次側室II減壓而未圖示之輔助泵短時間啟動後，閥體7打開而將水送向二次側室II。若二次側室II之壓力恢復為既定以上，則輔助泵停止，閥體7恢復為關停狀態。此時，裙部7a及凸部7b、突出部10作為錘而發揮功能，閥體7快速恢復為關停狀態而獲得止水性。藉由該等構成，本體1之內部空間中之閥體7所占之體積變大，成為將本體1小型輕量化時之課題，但藉由將閥體7之軸承8與突出部10、開口1a之配置為上述方式構成，可實現本體1之小型輕量化。As described above, the valve body 7 is provided with the skirt portion 7 a, the convex portion 7 b, and the protrusion portion 10. With these configurations, the weight of the valve body 7 can be ensured and stable water stop can be obtained. To be specifically described, after a short time after the auxiliary pump not shown in the figure is activated for a short time due to a slight leak from the joint of the pipe connected to the secondary side chamber II, the valve body 7 opens to remove the water Send to the secondary side room II. If the pressure of the secondary side chamber II is restored to above the predetermined level, the auxiliary pump will stop and the valve body 7 will return to the closed state. At this time, the skirt portion 7a, the convex portion 7b, and the protruding portion 10 function as a hammer, and the valve body 7 quickly returns to the closed state to obtain water stop. With these configurations, the volume occupied by the valve body 7 in the internal space of the main body 1 becomes larger, which becomes a problem when the main body 1 is reduced in size and weight. However, by combining the bearing 8 of the valve body 7 with the protrusion 10 and the opening The configuration of 1a is configured in the above-mentioned manner, and the main body 1 can be reduced in size and weight.

於突出部10之閥座6側之面接觸有貫穿蓋1b而設置之桿11之端11A。桿11於中間由軸支承，桿11於圖中為可上下轉動之構成。The end 11A of the rod 11 provided through the cover 1b is in contact with the surface on the valve seat 6 side of the protrusion 10. The rod 11 is supported by a shaft in the middle, and the rod 11 is a structure that can rotate up and down in the figure.

桿11之與和閥體7接觸之端11A為相反側之端11B自蓋1b向外部突出，由殼體2覆蓋。如圖5所示，於端11B設置有向圖中上側突出設置之彈簧座12，於彈簧座12之同軸上設有設置於殼體2之基部2a之另一彈簧座13。於兩彈簧座12、13之間設有盤簧14作為回彈體（推壓構件）。The end 11A of the rod 11 that is in contact with the valve body 7 is the opposite end 11B that protrudes from the cover 1 b to the outside and is covered by the housing 2. As shown in FIG. 5, a spring seat 12 protruding to the upper side in the figure is provided at the end 11B, and another spring seat 13 provided on the base 2a of the housing 2 is provided on the coaxial line of the spring seat 12. A coil spring 14 is provided as a resilient body (pressing member) between the two spring seats 12 and 13.

藉由盤簧14，桿11之端11B平常被推向圖中下方。藉由桿11之中間之軸19，端11B之相反側之端11A被推向圖中上方即閥體7打開之方向，但盤簧14作用之力係不打開閥體7之程度之較弱之力。若突出部10離開桿11之端11A，則藉由盤簧14之作用使得桿11進行轉動動作而移動至偏離關閥時之初始位置之位置。With the coil spring 14, the end 11B of the rod 11 is usually pushed downward in the figure. With the shaft 19 in the middle of the rod 11, the end 11A on the opposite side of the end 11B is pushed upward in the figure, that is, the direction in which the valve body 7 is opened, but the force of the coil spring 14 does not open the valve body 7 to a weaker degree Power. If the protrusion 10 leaves the end 11A of the rod 11, the rod 11 is rotated by the action of the coil spring 14 to move to a position deviating from the initial position when the valve is closed.

於桿11之端11B可轉動地設置有與作動片15接觸之接觸子16。於接觸子16之一端載置彈簧座12，藉由盤簧14之作用，平常接觸子16與桿11處於同一直線上。接觸子16之另一端係處於其前端之彎曲部16a卡止作動片15，作動片15係與限制開關17相隔配置。經由藉由利用桿11之轉動解除作動片15與彎曲部16a之卡止而位移之作動片15，以使限制開關17作動。The end 11B of the rod 11 is rotatably provided with a contact 16 contacting the actuating piece 15. A spring seat 12 is placed on one end of the contactor 16. By the action of the coil spring 14, the contactor 16 and the rod 11 are usually on the same straight line. The other end of the contact 16 is at the front end of the bent portion 16 a to lock the actuating piece 15, and the actuating piece 15 is arranged apart from the limit switch 17. The limit switch 17 is actuated by the actuating piece 15 which is displaced by releasing the locking of the actuating piece 15 and the curved portion 16a by the rotation of the lever 11.

圖中於作動片15之上方設置有延遲機構18。延遲機構18具有延遲作動片15之動作之作用，利用使用了空氣阻尼器或油阻尼器之構造者。延遲機構18防止於上文所說明之輔助泵啟動時自限制開關17輸出訊號。省略延遲機構18之詳細之說明。In the figure, a delay mechanism 18 is provided above the actuating piece 15. The delay mechanism 18 has the function of delaying the action of the actuating piece 15, and uses a structure using an air damper or an oil damper. The delay mechanism 18 prevents the output signal from the limit switch 17 when the auxiliary pump described above is activated. The detailed description of the delay mechanism 18 is omitted.

殼體2係由基部2a、蓋2b構成，上述所說明之彈簧座12、13、盤簧14、作動片15、接觸子16、限制開關17、延遲機構18係被收容於設置於蓋1b上之殼體2之內部。The housing 2 is composed of a base 2a and a cover 2b. The spring seats 12, 13, the coil spring 14, the actuator 15, the contactor 16, the limit switch 17, and the delay mechanism 18 described above are housed on the cover 1b. The inside of the shell 2.

基部2a為板狀，具有供桿11插通之孔。於基部2a之與蓋1b相對向之面設置有桿11之轉動軸19，於其相反面設置手柄20作為可阻止桿11之動作之鎖定裝置（參照圖6）。手柄20係細長之板狀，於中間部分具有長孔21。手柄20之一端側成為與桿11之卡合部22，形成有朝向前端側端部變細之錐形部22A。前端22B係形成為略圓之曲線狀。另一端側成為供作業者以手握住而移動手柄20之操作部23。The base 2a has a plate shape and has a hole through which the rod 11 is inserted. The rotating shaft 19 of the lever 11 is arranged on the surface of the base 2a opposite to the cover 1b, and the handle 20 is arranged on the opposite surface as a locking device that can prevent the movement of the lever 11 (refer to FIG. 6). The handle 20 has a slender plate shape with a long hole 21 in the middle part. One end side of the handle 20 becomes an engagement portion 22 with the rod 11, and a tapered portion 22A that tapers toward the tip end side is formed. The tip 22B is formed in a slightly rounded curve shape. The other end side becomes the operation part 23 for the operator to hold and move the handle 20 by hand.

如圖6所示，手柄20平常將操作部23收於基部2a內（解除鎖定狀態）。若將手柄20沿圖中順時針轉動而壓入桿11之方向，則可阻止桿11之動作，操作部23成為自基部2a伸出之狀態（鎖定狀態）。由此，作業者可藉由操作部23與基部2a之位置關係而容易地判斷成為無法自限制開關17輸出訊號之狀態。As shown in Fig. 6, the handle 20 usually receives the operating portion 23 in the base 2a (unlocked state). If the handle 20 is rotated clockwise in the figure and pressed into the direction of the lever 11, the movement of the lever 11 can be prevented, and the operating portion 23 will be in a state (locked state) extending from the base 2a. As a result, the operator can easily determine that a signal cannot be output from the limit switch 17 based on the positional relationship between the operating portion 23 and the base portion 2a.

又，即使作業者於鎖定狀態下欲將蓋2b安裝於基部2a，亦因為操作部23自基部2a伸出之狀態而無法將蓋2b安裝於基部2a。藉此，即使對作業不熟悉者亦可因無法將蓋2b安裝於基部2a而感覺到異常，從而向其他熟練作業者報告而加以應對，由此解除鎖定狀態。In addition, even if the operator intends to attach the cover 2b to the base 2a in the locked state, the cover 2b cannot be attached to the base 2a because of the state in which the operating portion 23 protrudes from the base 2a. Thereby, even a person who is not familiar with the work can feel an abnormality due to the inability to attach the cover 2b to the base 2a, and report to other skilled workers and respond, thereby releasing the locked state.

於基部2a上形成有擋塊28A、28B作為引導轉動手柄20時之動作之突起。若使手柄20進行順時針轉動以自解除鎖定狀態成為鎖定狀態，則手柄20與擋塊28A接觸而成為自原來之位置旋轉大致90°之狀態。突起28A具有用以避免使手柄20轉動此角度以上之擋塊之作用，而對手柄20可轉動之角度範圍進行限制（參照圖7）。Stoppers 28A and 28B are formed on the base 2a as protrusions that guide the movement of the handle 20 when it is turned. When the handle 20 is rotated clockwise to turn from the unlocked state to the locked state, the handle 20 comes into contact with the stopper 28A and becomes a state rotated approximately 90° from the original position. The protrusion 28A functions as a stopper to prevent the handle 20 from rotating above this angle, and to limit the range of the angle that the handle 20 can rotate (refer to FIG. 7).

如圖7中虛線所示，若使手柄20沿長孔21滑動移動，則卡合部22之錐形部22A沿桿11之周面移動。此時，即使桿11向下側略有傾斜而成為桿11接觸於錐形部22A之狀態，亦不會被卡住，可順利地滑動移動手柄20。並且，手柄20之前端22B一邊接觸於擋塊28B之邊緣之一部分略圓地形成之引導部28C一邊滑動移動。As shown by the broken line in FIG. 7, if the handle 20 is slid and moved along the elongated hole 21, the tapered portion 22A of the engaging portion 22 moves along the peripheral surface of the rod 11. At this time, even if the lever 11 is slightly inclined downward and the lever 11 is in contact with the tapered portion 22A, it will not be caught, and the handle 20 can be smoothly moved. In addition, the front end 22B of the handle 20 slidably moves while contacting a guide portion 28C formed in a slightly rounded portion of the edge of the stopper 28B.

藉由手柄20之滑動移動，卡合部22之前端22B被導引至擋塊28B上，與錐形部22A相反側之邊22C與擋塊28B卡合。同時擋塊28A亦成為與手柄20之一邊接觸之狀態，以於擋塊28A、28B與手柄20之間幾乎無間隙之狀態被保持。藉此，可保持利用手柄20阻止桿11之動作之鎖定狀態。By the sliding movement of the handle 20, the front end 22B of the engaging portion 22 is guided to the stop 28B, and the side 22C on the opposite side of the tapered portion 22A is engaged with the stop 28B. At the same time, the stopper 28A is in contact with one side of the handle 20, and is maintained in a state where there is almost no gap between the stoppers 28A, 28B and the handle 20. Thereby, the locked state in which the handle 20 is used to prevent the movement of the lever 11 can be maintained.

於此狀態下，於自基部2a伸出之手柄20之方向設置有排水閥3。藉此，於將蓋1b自拆卸之狀態安裝於開口1a時，藉由使手柄20之朝向與設置有排水閥之方向一致，而可正確地將蓋1b安裝於開口1a。In this state, a drain valve 3 is provided in the direction of the handle 20 extending from the base 2a. Thereby, when the cover 1b is installed in the opening 1a in a self-detachable state, by making the direction of the handle 20 coincide with the direction in which the drain valve is provided, the cover 1b can be correctly installed in the opening 1a.

蓋2b係覆蓋設置於基部B之限制開關17或延遲機構18、未圖示之端子台而保護該等免受污物或水滴污染者。若取下此蓋C，則由L字形之基部2a支承之殼體2之內部構造大幅露出，因此收容於殼體2中之限制開關17或端子台等之接線作業或點檢作業之作業性良好。The cover 2b covers the limit switch 17 or the delay mechanism 18 provided on the base B, and the terminal block (not shown) to protect them from dirt or water droplets. If the cover C is removed, the internal structure of the housing 2 supported by the L-shaped base 2a is largely exposed. Therefore, the limit switch 17 or the terminal block contained in the housing 2 can be used for wiring work or inspection work. good.

排水閥3係於點檢或保養時將本體1內之流體向外部排出之閥，設置於本體1之任一側面。排水閥3之內部為角閥構造，排出口於圖1中為向下地設置。The drain valve 3 is a valve that discharges the fluid in the body 1 to the outside during inspection or maintenance, and is arranged on any side of the body 1. The inside of the drain valve 3 has an angle valve structure, and the discharge port is set downward in FIG. 1.

圖8係圖3所示之D-D線上之本體1之剖面圖。於二次側室II設置有收容開放時之閥體7之圓筒形狀之收容部1d，於收容部1d之下方設置軸承8。收容部1d為筒狀，向本體1之背面側延伸，其一部分延伸至本體1之二次側室II之凸緣F2之內周部。收容部1d之內徑大於閥體7之圓盤部7c之外徑，具有沿閥體7之凸部7b之形狀而成的曲面形狀之背面1e。於圖2中二點鏈線所示之閥體7之開放狀態下，於背面1e之大致中央設置有於閥體7開放時抵接之突起1f。Fig. 8 is a cross-sectional view of the main body 1 on the D-D line shown in Fig. 3. A cylindrical accommodating portion 1d for accommodating the valve body 7 when opened is provided in the secondary side chamber II, and a bearing 8 is provided under the accommodating portion 1d. The receiving portion 1d is cylindrical and extends to the back side of the main body 1, a part of which extends to the inner peripheral portion of the flange F2 of the secondary side chamber II of the main body 1. The inner diameter of the accommodating portion 1d is larger than the outer diameter of the disc portion 7c of the valve body 7, and has a curved back surface 1e that follows the shape of the convex portion 7b of the valve body 7. In the open state of the valve body 7 shown by the two-dot chain line in FIG. 2, a protrusion 1f that abuts when the valve body 7 is opened is provided in the approximate center of the back surface 1e.

於閥體7設置有裙部7a及突出部10，於閥體7之全開時裙部7a及突出部10會妨礙流動，但藉由設置收容部1d而增大全開時之閥體7之轉動量，從而可減小大量之水自本體1之一次側室I流向二次側室II時之壓力損失。又，藉由設置收容部1d，可減小分隔壁4至二次側室II之凸緣F2之尺寸，抑制本體1之高度尺寸，從而將本體1小型化。The valve body 7 is provided with a skirt portion 7a and a protruding portion 10. When the valve body 7 is fully opened, the skirt portion 7a and the protruding portion 10 will hinder the flow. However, by providing the receiving portion 1d, the rotation of the valve body 7 when fully opened is increased Therefore, the pressure loss when a large amount of water flows from the primary side chamber I of the main body 1 to the secondary side chamber II can be reduced. Moreover, by providing the accommodating portion 1d, the size of the flange F2 from the partition wall 4 to the secondary side chamber II can be reduced, the height dimension of the main body 1 can be suppressed, and the main body 1 can be miniaturized.

繼而，針對上述水流偵測裝置V1於火災時之動作進行說明。Then, the operation of the above-mentioned water flow detection device V1 during a fire will be described.

水流偵測裝置V1，一次側室I與未圖示之水源或泵連接，於二次側室II連接有未圖示之灑水頭。滅火設備配管內處於充水之狀態，水流偵測裝置之本體1之內部亦於一次側室I及二次側室II處於充水狀態。平時水流偵測裝置V1之閥體7為載置於閥座6之關閥狀態，一次側室I與二次側室II之水之壓力大致相等。The water flow detection device V1, the primary side chamber I is connected with a water source or pump not shown, and the secondary side chamber II is connected with a sprinkler head not shown. The piping of the fire extinguishing equipment is in a water-filled state, and the interior of the main body 1 of the water flow detection device is also in a water-filled state in the primary chamber I and the secondary chamber II. Normally, the valve body 7 of the water flow detecting device V1 is placed on the valve seat 6 in the closed state, and the pressure of the water in the primary chamber I and the secondary chamber II is approximately equal.

若發生火災，設置於二次側室II側之配管之灑水頭作動，則二次側室II側之配管內之水自灑水頭放出，因此逐漸減壓。若關停閥體7之二次側室II之水之壓力減小而變得低於一次側室I之壓力，則藉由二次側室II與一次側室I之壓力差推起閥體7，使閥桿9繞支點轉動。自灑水頭放出之水之量係使水流偵測裝置V1之閥體7轉動少許之程度之較少之水量，但由於藉由裙部7a縮小閥座6之內部之通水面積，故而閥體7之轉動量被放大。In the event of a fire, the sprinkler head of the piping on the side of the secondary room II will act, and the water in the pipe on the side of the secondary room II will be released from the sprinkler, so the pressure is gradually reduced. If the water pressure of the secondary side chamber II of the shut-off valve body 7 decreases and becomes lower than the pressure of the primary side chamber I, the valve body 7 is pushed up by the pressure difference between the secondary side chamber II and the primary side chamber I to make the valve The rod 9 rotates around the fulcrum. The amount of water released from the sprinkler head is a small amount of water to the extent that the valve body 7 of the water flow detection device V1 rotates a little, but because the skirt 7a reduces the internal water flow area of the valve seat 6, the valve body The amount of rotation of 7 is enlarged.

藉由閥體7離開閥座6而開放，一次側室I之水被送向二次側室II側。同時藉由閥體7之轉動，與突出部10卡合之桿11藉由設置於端11B之盤簧14而以軸19為支點轉動。藉此，端11A向開閥方向移動，端11B向限制開關17之方向移動。When the valve body 7 leaves the valve seat 6 and opens, the water in the primary chamber I is sent to the secondary chamber II. At the same time, by the rotation of the valve body 7, the rod 11 engaged with the protruding portion 10 is rotated with the shaft 19 as a fulcrum by the coil spring 14 provided at the end 11B. Thereby, the end 11A moves in the valve opening direction, and the end 11B moves in the direction of the limit switch 17.

由端11B卡止之作動片15藉由端11B之移動而解除卡止，藉由延遲裝置18內未圖示之推壓構件之作用而向限制開關17移動。此時，作動片15因延遲裝置18而動作變得緩慢，於解除端11B之卡止後數秒～十幾秒後使限制開關17作動。The actuating piece 15 locked by the end 11B is released by the movement of the end 11B, and moves to the limit switch 17 by the action of a pressing member (not shown) in the delay device 18. At this time, the operation of the actuating piece 15 becomes slow due to the delay device 18, and the limit switch 17 is actuated several to ten seconds after the release end 11B is locked.

藉由限制開關17之作動向未圖示之接收盤輸出警報，向建築物內通知火災之發生而提醒避難引導。然後泵啟動，開始自水源向作動之灑水頭送水。藉由泵之啟動而開始送水後，閥體7成為全開狀態而被收容至收容部1d。自灑水頭持續噴灑水從而消滅火災。The operation of the limit switch 17 outputs an alarm to a receiving panel (not shown) to notify the building of the occurrence of a fire and remind the evacuation guidance. Then the pump starts and starts to send water from the water source to the active sprinkler. After the water supply is started by the activation of the pump, the valve body 7 is fully opened and is accommodated in the accommodating portion 1d. Continue to spray water from the sprinkler to eliminate the fire.

繼而，針對上述水流偵測裝置V1中之蓋1b之安裝及拆卸方法進行說明。Then, the method of installing and disassembling the cover 1b in the water flow detecting device V1 will be described.

水流偵測裝置V1係設置於滅火設備配管上，平常處於內部充水之狀態。於進行水流偵測裝置V1之內部之清掃或保養時，打開排水閥3將配管內之水排出後取下蓋1b。The water flow detection device V1 is installed on the piping of the fire extinguishing equipment, and is usually in a state of internal water filling. When cleaning or maintaining the interior of the water flow detection device V1, open the drain valve 3 to drain the water in the pipe and then remove the cover 1b.

此時，於取下蓋1b前之階段將殼體2之蓋2b拆卸，將手柄20向排水閥3之方向轉動。藉由手柄20之轉動，桿11之動作被阻止，以接觸子16與作動片15卡合之初始狀態被保持。At this time, before removing the cover 1b, the cover 2b of the housing 2 is disassembled, and the handle 20 is rotated in the direction of the drain valve 3. By the rotation of the handle 20, the movement of the rod 11 is blocked, and the initial state of the contactor 16 and the actuating piece 15 is maintained.

取下蓋1b後，繼而將閥體7自開口1a取出。於此之前將2根閥桿9自本體1之側面拆卸並將閥桿9自軸承8抽出。然後自開口1a取出閥體7。此時，先使閥體7向上方移動，將裙部7a自閥座6抽出，自開口1a取出閥體7。此時，若以手指夾住配置於開口1a之附近之突出部10而移動閥體7，則容易進行作業。After removing the cover 1b, the valve body 7 is then taken out from the opening 1a. Before that, the two valve rods 9 are disassembled from the side of the body 1 and the valve rods 9 are drawn out from the bearing 8. Then, the valve body 7 is taken out from the opening 1a. At this time, the valve body 7 is first moved upward, the skirt 7a is drawn out from the valve seat 6, and the valve body 7 is taken out from the opening 1a. At this time, if the valve body 7 is moved by pinching the protrusion 10 arranged in the vicinity of the opening 1a with the fingers, the work is easy.

於將閥體7自本體拆卸之狀態下進行本體1之內部之清掃、或閥體7之零件之更換作業等。作業結束後按照與上述拆卸順序相反之順序將閥體7設置於本體1內。將閥桿9設置於閥體7之軸承8後，將蓋1b安裝於開口1a。The cleaning of the inside of the body 1 or the replacement of parts of the valve body 7 are performed while the valve body 7 is disassembled from the body. After the operation, the valve body 7 is installed in the main body 1 in the reverse order of the above-mentioned disassembly sequence. After installing the valve stem 9 on the bearing 8 of the valve body 7, the cover 1b is installed on the opening 1a.

於蓋1b設置有與閥體7之突出部10卡合之桿11，若未將桿11之端11A正確地設於原來之位置，則水流偵測裝置V1無法獲得原本之功能。然而，蓋1b於外緣部設置有4處螺栓孔，此螺栓孔係以均等角度配置於同心圓上，因此不論設置於蓋1b之殼體2之朝向如何，均可安裝於本體1。The cover 1b is provided with a rod 11 that engages with the protrusion 10 of the valve body 7. If the end 11A of the rod 11 is not correctly set to the original position, the water flow detecting device V1 cannot obtain the original function. However, the cover 1b is provided with four bolt holes on the outer edge. The bolt holes are arranged on concentric circles at equal angles. Therefore, the cover 1b can be installed on the body 1 regardless of the orientation of the housing 2 provided on the cover 1b.

因此，若使手柄20之方向與排水閥3之設置方向一致而將蓋1b安裝於開口1a，則可將桿11之端11A正確地設於突出部10。進而，由於藉由手柄20將桿11保持於閥體7關停之初始狀態之位置，故而可將端11A與突出部10容易地卡合。Therefore, if the direction of the handle 20 is aligned with the installation direction of the drain valve 3 and the cap 1b is installed in the opening 1a, the end 11A of the rod 11 can be accurately installed in the protrusion 10. Furthermore, since the lever 11 is held at the initial position of the valve body 7 when the valve body 7 is closed by the handle 20, the end 11A and the protrusion 10 can be easily engaged.

蓋1b之安裝結束後，使手柄20以收於基部2a之內部之方式轉動而恢復為原來之狀態。藉此，桿11恢復為解除鎖定狀態。進而將蓋2b安裝於基部2a而結束全部作業。After the installation of the cover 1b is completed, the handle 20 is rotated so as to be stored inside the base 2a to restore the original state. Thereby, the lever 11 is restored to the unlocked state. Furthermore, the cover 2b is attached to the base 2a, and all operations are completed.

如上述所說明般，於設置於蓋1b之殼體2具有手柄20作為可確認與本體1之安裝位置之識別部。作為上述識別部之變形例，亦可對蓋1b之表面施加顯示與本體1之對準位置之識別顯示而構成。例如，於蓋1b中亦可於設置有排水閥3之方向附有利用文字或表面之凹凸之識別顯示。又，可相應地於蓋1b周邊之本體1側亦設置同樣之識別顯示。As described above, the housing 2 provided on the cover 1b has a handle 20 as an identification part that can confirm the installation position with the main body 1. As a modification of the above-mentioned recognition part, it can also be constituted by applying a recognition display showing the alignment position of the main body 1 on the surface of the cover 1b. For example, in the cover 1b, the direction in which the drain valve 3 is provided may also be accompanied by an identification display using characters or surface irregularities. In addition, the same identification display can be provided on the side of the body 1 around the cover 1b accordingly.

或者亦能以與設置於蓋1b之表面之殼體之連接部位於本體1之一次側（底面側）之方式進行設置，或者能以將殼體2之基部2a與蓋2b固定之固定螺絲2c位於本體1之一次側之方式進行設置。Or it can be installed in such a way that the connection part with the casing provided on the surface of the cover 1b is located on the primary side (bottom side) of the main body 1, or it can be installed with a fixing screw 2c for fixing the base 2a of the casing 2 and the cover 2b It is set on the primary side of the main body 1.

進而，作為第1實施形態之鎖定裝置之變形例，可於殼體2之內部設置阻止作動片15之動作之構造代替上文說明之阻止桿11之動作之構造。Furthermore, as a modification of the locking device of the first embodiment, a structure that prevents the movement of the operating piece 15 may be provided inside the housing 2 instead of the structure that prevents the movement of the lever 11 described above.

1:本體 1a:開口 1b:蓋 1d:收容部 1e:背面 1f:突起 2:殼體 2a:基部 2b:蓋 2c:固定螺絲 3:排水閥 4:分隔壁 5:連通孔 6:閥座 7:閥體（閥） 7a:裙部 8:軸承 9:閥桿 10:突出部 11:桿 11A、11B:端 12:彈簧座 14:盤簧（推壓構件） 15:作動片 17:限制開關 18:延遲機構 19:軸 20:手柄（鎖定裝置） 21:長孔 22:卡合部 22A:錐形部 22B:前端 22C:邊 23:操作部 28A、28B:擋塊 28C:引導部 51:閥體 51a:突出部 52:桿 53:搖桿 54:開關 55:蓋 56:重設部 W:錘 I:一次側室 II:二次側室 V1:水流偵測裝置1: body 1a: opening 1b: cover 1d: Containment Department 1e: back 1f: protrusion 2: shell 2a: base 2b: cover 2c: fixing screw 3: Drain valve 4: Partition wall 5: Connecting hole 6: Valve seat 7: Valve body (valve) 7a: skirt 8: Bearing 9: Stem 10: protrusion 11: Rod 11A, 11B: end 12: Spring seat 14: Coil spring (pressing member) 15: Actuator 17: Limit switch 18: Delay agency 19: axis 20: Handle (locking device) 21: Long hole 22: Card joint 22A: Taper 22B: Front end 22C: Edge 23: Operation Department 28A, 28B: stop 28C: Guidance 51: Valve body 51a: protrusion 52: Rod 53: Joystick 54: switch 55: cover 56: Reset Department W: Hammer I: Primary side room II: Secondary room V1: Water flow detection device

圖1係第1實施形態之水流偵測裝置之前視圖。 圖2係圖1之A-A剖面圖。 圖3係圖2之B-B剖面圖。 圖4（a）係閥體之立體圖，（b）係閥體之剖面圖。 圖5係圖2所示之殼體部分之放大剖面圖。 圖6係圖2之C-C剖面圖（解除鎖定時）。 圖7係圖2之C-C剖面圖（鎖定時）。 圖8係圖3之D-D剖面圖（僅本體）。 圖9係習知之水流偵測裝置之剖面圖，（a）係表示閥體與桿、搖桿等之位置關係之說明圖。（b）係重設部之說明圖。Fig. 1 is a front view of the water flow detecting device of the first embodiment. Fig. 2 is a sectional view taken along line A-A of Fig. 1. Figure 3 is a B-B sectional view of Figure 2. Figure 4 (a) is a three-dimensional view of the valve body, (b) is a cross-sectional view of the valve body. Fig. 5 is an enlarged cross-sectional view of the housing part shown in Fig. 2. Figure 6 is the C-C cross-sectional view of Figure 2 (when unlocking). Figure 7 is the C-C cross-sectional view of Figure 2 (when locked). Figure 8 is the D-D cross-sectional view of Figure 3 (body only). Figure 9 is a cross-sectional view of a conventional water flow detection device, (a) is an explanatory diagram showing the positional relationship between the valve body and the rod, rocker, etc. (B) It is an explanatory diagram of the reset department.

1:本體 1: body

1a:開口 1a: opening

1b:蓋 1b: cover

1d:收容部 1d: Containment Department

1e:背面 1e: back

1f:突起 1f: protrusion

2:殼體 2: shell

2a:基部 2a: base

2b:蓋 2b: cover

2c:固定螺絲 2c: fixing screw

4:分隔壁 4: Partition wall

5:連通孔 5: Connecting hole

6:閥座 6: Valve seat

7:閥體(閥) 7: Valve body (valve)

7a:裙部 7a: skirt

8:軸承 8: Bearing

9:閥桿 9: Stem

10:突出部 10: protrusion

11:桿 11: Rod

11A、11B:端 11A, 11B: end

I:一次側室 I: Primary side room

II:二次側室 II: Secondary room

V1:水流偵測裝置 V1: Water flow detection device

Claims (10)

一種水流偵測裝置，其特徵在於，具備： 中空狀之本體，其連接於滅火設備配管； 閥，其於本體之內部採用擺動止回閥構造； 桿，其一端與上述閥卡合，另一端向上述本體之外部突出，且藉由上述閥之開閉動作而位移； 開口，其可供上述閥自上述本體出入； 蓋，其堵塞該開口；及 開關，其設置於上述蓋，藉由上述桿之另一端側之位移而輸出訊號； 於上述開口與上述閥體之間具有配置上述桿之空間。A water flow detection device, characterized in that it has: Hollow body, which is connected to the piping of fire extinguishing equipment; Valve, which adopts swing check valve structure inside the body; A rod, one end of which is engaged with the valve, and the other end protrudes to the outside of the body, and is displaced by the opening and closing action of the valve; Opening, which allows the valve to enter and exit from the body; Cover, which blocks the opening; and A switch, which is arranged on the cover, and outputs a signal by the displacement of the other end of the rod; There is a space for disposing the rod between the opening and the valve body. 如請求項1所述之水流偵測裝置，其中， 於上述本體之端具有向外側擴張地設置之凸緣，上述開口係配置於上述凸緣之邊緣附近。The water flow detection device according to claim 1, wherein: An end of the main body has a flange expanded outward, and the opening is arranged near the edge of the flange. 如請求項1或2所述之水流偵測裝置，其中， 於與平行於上述本體之中心軸之虛擬平面交叉之直線上配置有上述開口、上述閥之軸承、及於上述閥體之邊緣與上述桿卡合之突出部。The water flow detection device according to claim 1 or 2, wherein: The opening, the bearing of the valve, and the protrusion that engages with the rod on the edge of the valve body are arranged on a straight line intersecting a virtual plane parallel to the central axis of the body. 一種水流偵測裝置，其特徵在於，具備： 中空狀之本體，其連接於滅火設備配管； 閥，其於本體之內部採用擺動止回閥構造； 桿，其一端與上述閥卡合，另一端向上述本體之外部突出，且藉由上述閥之開閉動作而位移； 開口，其可供上述閥自上述本體出入； 蓋，其堵塞該開口；及 開關，其設置於上述蓋，藉由上述桿之另一端側之位移而輸出訊號； 於上述本體具有收容全開狀態之上述閥之筒狀之收容部。A water flow detection device, characterized in that it has: Hollow body, which is connected to the piping of fire extinguishing equipment; Valve, which adopts swing check valve structure inside the body; A rod, one end of which is engaged with the valve, and the other end protrudes to the outside of the body, and is displaced by the opening and closing action of the valve; Opening, which allows the valve to enter and exit from the body; Cover, which blocks the opening; and A switch, which is arranged on the cover, and outputs a signal by the displacement of the other end of the rod; The main body has a cylindrical accommodating portion for accommodating the valve in a fully opened state. 如請求項1或4所述之水流偵測裝置，其中， 於上述閥具有自閥座載置面向一次側延伸之裙部。The water flow detection device according to claim 1 or 4, wherein: The valve has a skirt extending from the valve seat placement surface to the primary side. 如請求項4所述之水流偵測裝置，其中， 於上述閥體中，於與閥座載置面相反之側具有凸部，上述收容部之背面具有沿凸部之形狀而成之曲面。The water flow detection device according to claim 4, wherein: In the valve body, a convex portion is provided on the side opposite to the valve seat placement surface, and the back surface of the receiving portion has a curved surface formed along the shape of the convex portion. 如請求項1或4所述之水流偵測裝置，其中， 於上述桿之另一端側之附近具有可將上述桿保持於初始位置/解除該保持之鎖定裝置。The water flow detection device according to claim 1 or 4, wherein: Near the other end of the rod, there is a locking device that can hold the rod in the initial position/release the holding. 如請求項7所述之水流偵測裝置，其中， 上述開關及上述鎖定裝置係由具備設置於上述蓋之基部及安裝於該基部之蓋之殼體所覆蓋，設置成在由上述鎖定裝置保持上述桿之狀態下無法將上述蓋安裝於上述基部。The water flow detection device according to claim 7, wherein: The switch and the lock device are covered by a housing provided with a base provided on the cover and a cover attached to the base, and are provided so that the cover cannot be attached to the base while the lever is held by the lock device. 如請求項1或6所述之水流偵測裝置，其中， 於上述蓋具有可確認與上述本體之安裝位置之識別部。The water flow detection device according to claim 1 or 6, wherein: The cover has an identification part that can confirm the installation position of the body. 如請求項7所述之水流偵測裝置，其中， 使將上述桿保持於初始位置之狀態之上述鎖定裝置的手柄之朝向與設置於上述本體之側面之排水閥之方向一致而將上述蓋安裝於上述本體。The water flow detection device according to claim 7, wherein: The direction of the handle of the locking device, which holds the lever in the initial position, is aligned with the direction of the drain valve provided on the side of the body, and the cover is attached to the body.
TW108141930A 2018-12-28 2019-11-19 Water Flow Detection Device TWI813811B (en)

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